D17-F05-A01 · SYNTHETIC TEACHING DATA

Variance-Ratio Random-Walk Test

Test whether the variance of aggregated log returns scales as a random-walk benchmark predicts.

Experiment

Aggregation horizon q

Teaching stage

Swipe the chart and evidence table horizontally to inspect the full labels. Keyboard users can focus each region and use the arrow keys.

Choose → step → observe → explain → compare

Inspect the calculation

Observation	Input / intermediate	Derived evidence

All displayed values are calculated from the selected synthetic input. Decimal returns use 0.01 for 1%. A statistical result applies only to its declared hypothesis and sample.